I think so, yes, post 1945.

The design of field cap is puzzling me, as it is similar to the M43 Feldmutze of the Wehrmacht, but seems to have buttons at the left and right front/sides rather than two buttons at the front/middle. The chevron cap badge is distinctive and common to them all.

There are a number of specialist forums that would indeed help, here’s one:

http://forum.axishistory.com/

Please do come back with any more information you might gather, it is a very interesting group.